Question

Solve with quadratic formula 8x^2-9x-5=0

Answer 1

`8x^(2) - 9x - 5 = 0`


`x = \frac{-(-9) +/- \sqrt{(-9)^(2) - 4(8)(-5)}}{2(8)}`


`x = (9 +/- √(81 + 160))/(16)`


`x = (9 +/- √(241))/(16)`


`x = (9 +/- 15.524)/(16)`


`x = 0.5625 +/- 0.97025`

`x = 0.5625 + 0.97025`
`x = 0.5625 - 0.97025`

`x = 1.53275`
`x = -0.40775`